TPS25921LD

{
  "schema_version": 1,
  "type": "component",
  "slug": "tps25921ld",
  "title": "TPS25921LD",
  "brief": "Texas Instruments Surge Protection Devices (SPDs), SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "circuit protection",
    "tps25921ld",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TPS25921LD",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Circuit Protection",
    "subcategory": "Surge Protection Devices (SPDs)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps25921l",
    "parts": {
      "symbol": "tps25921ld.kicad_sym",
      "footprint": "tps25921ld.kicad_mod",
      "model_3d": "tps25921ld-hero.glb",
      "model_3d_plain": "tps25921ld.glb",
      "model_3d_step": "tps25921ld-etched.step",
      "model_3d_step_plain": "tps25921ld.step",
      "lbr": "tps25921ld.lbr"
    },
    "distributor_links": {
      "lcsc": "C1574847",
      "digikey": "296-38382-5-ND",
      "mouser": "595-TPS25921LD"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T22:03:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-38382-5-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPS25921LD",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the device."
      },
      {
        "number": "2",
        "name": "SS",
        "type": "passive",
        "description": "A capacitor from this pin to GND sets the output voltage ramp rate at turn-on, with 1 nF to 1000 nF recommended and 0 to 6 V recommended operating range (sink current limited to 5 mA)."
      },
      {
        "number": "3",
        "name": "ENUV",
        "type": "input",
        "description": "Input for setting the programmable undervoltage lockout threshold; an undervoltage event opens the internal FET and asserts FLT, and pulling it to GND resets the thermal fault latch in the TPS25921L, with a recommended range of 0 to 18 V."
      },
      {
        "number": "4",
        "name": "IN",
        "type": "power_in",
        "description": "Power input and supply voltage of the device, with a recommended range of 4.5 V to 18 V and an absolute maximum of 20 V (22 V for 10 ms transient)."
      },
      {
        "number": "5",
        "name": "OUT",
        "type": "power_out",
        "description": "Power output of the device, with a recommended operating range of 0 to 18 V and 0.1 µF to 1 µF external capacitance recommended."
      },
      {
        "number": "6",
        "name": "FLT",
        "type": "output",
        "description": "Open-drain fault indicator that goes low for undervoltage, overvoltage, or thermal shutdown faults (a nuisance fast trip does not trigger it), with a maximum sink current of 100 mA and absolute maximum of 20 V."
      },
      {
        "number": "7",
        "name": "ILIM",
        "type": "passive",
        "description": "A resistor from this pin to GND sets the overload and short-circuit current limit, with 35.7 kΩ to 158 kΩ recommended (ILIM pin 0 to 3.3 V)."
      },
      {
        "number": "8",
        "name": "OVP",
        "type": "input",
        "description": "Input for setting the programmable overvoltage protection threshold; an overvoltage event opens the internal FET and asserts FLT, with a recommended range of 0 to 18 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin types for SS and ILIM (passive, since they are set by an external capacitor and resistor) and EN; The datasheet text provided is the Chinese translation (ZHCSCQ0) and the English original was not in"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0433,
        "at": "2026-10-07T22:03:25"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps25921l",
        "pages": 37,
        "sha256": "8d06a4861fe9cc79",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tps25921ld.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps25921ld-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e5e5416e45587fe65e5e09f017000ad56ba92b41f99a18cf2a7bef345d12db04",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-8",
      "Category": "Circuit Protection",
      "Pins": "8"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tps25921ld"
  ],
  "discovery_pitch": "TPS25921LD (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps25921ld.kicad_sym",
    "tps25921ld.kicad_mod",
    "tps25921ld.glb",
    "tps25921ld.step",
    "tps25921ld.lbr",
    "docs/hero.png",
    "docs/tps25921ld-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps25921ld-hero.glb",
    "tps25921ld-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}